The Digital Signal Processing Platform for the Low Frequency Aperture Array: Preliminary Results on the Data Acquisition Unit-Reference-Cited by-同舟云学术

The Digital Signal Processing Platform for the Low Frequency Aperture Array: Preliminary Results on the Data Acquisition Unit

Published:2017-03 Issue:01 Volume:06 Page:1641014
ISSN:2251-1717
Container-title:Journal of Astronomical Instrumentation
language:en
Short-container-title:J. Astron. Instrum.

Author:

Naldi Giovanni¹,Mattana Andrea¹,Pastore Sandro²,Alderighi Monica³,Zarb Adami Kristian⁴⁵,Schillirò Francesco⁶,Aminaei Amin⁴,Baker Jeremy⁷,Belli Carolina⁸,Comoretto Gianni⁸,Chiarucci Simone⁸,Chiello Riccardo⁴,D’Angelo Sergio²,Dalle Mura Gabriele⁹,De Marco Andrea⁵,Halsall Rob⁷,Magro Alessio⁵,Monari Jader¹,Roberts Matt⁷,Perini Federico¹,Poloni Marco¹,Pupillo Giuseppe¹,Rusticelli Simone¹,Schiaffino Marco¹,Zaccaro Emanuele⁹

Affiliation:

1. Istituto Nazionale di Astrofisica — Istituto di, Radioastronomia — Via Fiorentina, 3513, 40059 — Bologna, Italy

2. Sanitas EG, Viale F. Restelli, 3, 20124 Milan, Italy

3. Istituto Nazionale di Astrofisica — Istituto di Astrofisica Spaziale e Fisica Cosmica, Via E. Bassini 15, I-20133 Milano, Italy

4. University of Oxford, Denys Wilkinson Building, Oxford, OX1 3RH, United Kingdom

5. Institute of Space Sciences and Astronomy, University of Malta, Msida MSD 2080, Malta

6. Istituto Nazionale di Astrofisica — Osservatorio Astrofisico di Catania, Via S.Sofia 78, 95123 Catania, Italy

7. Science & Technology Facilities Council, Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, United Kingdom

8. Istituto Nazionale di Astrofisica — Osservatorio Astrofisico di Arcetri, Largo E. Fermi, 5, 50125 Firenze, Italy

9. Campera ES, Via Mario Giuntini 13, 56023, Navacchio, Pisa, Italy

Abstract

A signal processing hardware platform has been developed for the Low Frequency Aperture Array component of the Square Kilometre Array (SKA). The processing board, called an Analog Digital Unit (ADU), is able to acquire and digitize broadband (up to 500[Formula: see text]MHz bandwidth) radio-frequency streams from 16 dual polarized antennas, channel the data streams and then combine them flexibly as part of a larger beamforming system. It is envisaged that there will be more than 8000 of these signal processing platforms in the first phase of the SKA, so particular attention has been devoted to ensure the design is low-cost and low-power. This paper describes the main features of the data acquisition unit of such a platform and presents preliminary results characterizing its performance.

Publisher

World Scientific Pub Co Pte Lt

Subject

Astronomy and Astrophysics,Instrumentation

Link

https://www.worldscientific.com/doi/pdf/10.1142/S2251171716410142

Reference6 articles.

1. AN-835 Application Note, Rev. B;Arrants A.,2015

2. The Signal Processing Firmware for the Low Frequency Aperture Array

3. The Square Kilometre Array

4. On the use of windows for harmonic analysis with the discrete Fourier transform

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